Battery operated flashbang

$30-250 USD

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超过 11 年前

$30-250 USD

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The product we are designing will be used by police/military. We need a schematics/diagram of an audio,buzzer , or siren that produces 130-145dB@ 2-5ft. We want to be able to press and hold a push button toggle switch for 2seconds after which the product will sound for 60seconds and then resest.

Electrical Engineering

Electronics

Engineering

Mechanical Engineering

Product Design

项目 ID: 2583833

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5提案

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活跃11 年前

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@engmahmoudsayed

Dear sir i understand your project and i a really interest to do it and i am ready to start working in it now please check PM for more details

$200 USD 在7天之内

4.8

(76条评论)

7.1

@Davelelievre

Hi Joshuabrown, I can could design this for you if you pick which sounder you want to use.

$150 USD 在3天之内

4.9

(23条评论)

6.3

@viabox

Hi, I would like to work with you. And I will come up with the new product design. Please see your personal inbox for the Design Proposal. Thanks!

$450 USD 在14天之内

5.0

(2条评论)

4.8

@CompuIIT

This is a fairly simple project for our team. We are new on Freelancer, but have more than four years of experience in embedded solutions, Arduino, and Android projects.

$169 USD 在4天之内